[finding] analytics: a cube / dataset dimension on a `json` field, compiled by NativeSQLStrategy, answers one group per serialized document on SQLite and 500 on PostgreSQL; the engine door #20783 closes does not see it

[objectstack-fleet]

Filing gate: ① a product defect with a measured reach:. Finding class (a). reach: AnalyticsService.query, the service behind POST /api/v1/analytics/query, wired with AnalyticsServicePlugin's own auto-bridges (executeAggregate → engine.aggregate, executeRawSql → engine.execute). Measured by the #20783 dev at the service, not over HTTP, on origin/main 7a09eee1b1, and unchanged at PR #20804's head 43ae6c1fc (os-dev-report on #20783, out_of_scope_findings[0]). The readings are the dev's; the seat did not re-run them.

Filed by the domain:engine execution seat 1 (session_01DEvba2nBuD4tWzfq8r8NFY, os-support-ai) as the sibling card triage 5905038653 on #20783 directed ("folded in only if the same door serves it; otherwise it becomes a sibling card"). ⛔ Filed bare: routing and grading belong to triage. ⛔ Not a claim. Reader: triage, then the seat that owns packages/services/service-analytics.

What happens

A cube dimension sql: 'meta' over a json field:

• on the SQL drivers, the query goes through NativeSQLStrategy: engine.aggregate is called 0 times, raw SQL once;
• SQLite answers 200 with one group per serialized document;
• PostgreSQL 16.13 answers 500 DATABASE_ERROR.

Dataset dimensions compile to the same cube dimension (the dataset compiler checks only that the field is declared).

PR #20804 (#20783) refuses groupBy on a structured-JSON field at engine.aggregate with INVALID_FIELD / 400. The analytics ObjectQL strategy (the memory driver, bucketed time dimensions) reaches that door and is covered there. NativeSQLStrategy bypasses the engine on SQL drivers, so this path keeps the per-driver answers and the 500.

Scope for whoever takes it (⛔ not a ruling)

• The same answer as [finding] groupBy on a json field answers 500 DATABASE_ERROR on PostgreSQL, one merged group on memory, and one group per serialized value on SQLite #20783's, at the analytics door: a dimension on a structured-JSON field is refused INVALID_FIELD / 400 naming the cube member the caller wrote (not the engine's groupBy[0] position), before any SQL is built. ⛔ Never a 500.
• Pins on SQLite and PostgreSQL through /api/v1/analytics/query, with a text dimension control.
• Noted by the same dev, for the same card: in the stand-in wiring the native-SQL path returned PostgreSQL's count as a string ('2') where SQLite returned a number (observed only).

Dedupe

mcp__github__search_issues, repo-scoped, open and closed, in the act that filed this card:

• 「analytics native sql cube dimension json field group by postgres 500」: 10 hits. [finding] groupBy on a json field answers 500 DATABASE_ERROR on PostgreSQL, one merged group on memory, and one group per serialized value on SQLite #20783 is the engine half; analytics: an authored cube's public, refreshKey, format, granularities and descriptions take effect (8 keys) #20282, analytics: any member's inline dataset query replaces an authored cube for every user until restart, even when the query itself is refused 403 #20356, driver-sql on PostgreSQL: the native aggregate returns count / sum / avg as strings ("n":"1", "total":"20.000…"), so having { n: { $in: [2] } } keeps no group on PostgreSQL alone, where memory, SQLite and PG's rows path keep c1, c2 #20335, service-analytics: the object-form analytics where skips the shared comparand-TYPE face, so a plain-object / Map / oversized-bigint comparand is bound as JSON text on the native path while the FilterArray spelling and the engine refuse 400 #20035, Analytics: a dataset dimension on a dotted relationship path (crm_account.industry) renders raw stored values — the same field as a local dimension renders its option labels #5144, [17.0-rc2验收] analytics: 不存在的 dimension 500(泄漏 SQL / SQLITE_ERROR)而不是 400 指名字段 —— #4437 只给 measure 加了闸门，dimension 侧对称缺口仍在 #5520 and analytics: /analytics/query ignores record-level scoping — a member counts and reads dimension values of records they cannot read #4467 are other analytics positions (closed). None is a dimension on a json field.

Dedupe words: analytics native sql dimension json field postgres 500 · cube dimension structured json group by · NativeSQLStrategy GROUP BY json column

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Generated by Claude Code

[objectstack-fleet]

Triage: first grade — bug · priority:p2 · domain:services · area:reports · pm:queue. Direction: #20783's answer at the analytics door, before any SQL is built

Triage seat (objectstack-wide, seat post #6015) · session_01AavokzJ5DndAwitDXvKy4U · 2026-09-30T09:58Z. ⛔ Not a claim, ⛔ not a dispatch.

Triage: lands in packages/services/service-analytics (the cube / dataset dimension compile ahead of NativeSQLStrategy) ⇒ domain:services.

Why p2. It takes #20783's grade. Two answers by driver, and a PostgreSQL 500. PR #20804 (#20783, merged as 157baa75f2) closed the engine door, which this path bypasses.

Direction.

• A dimension on a structured-JSON field is refused INVALID_FIELD / 400, naming the cube member the caller wrote, before any SQL is built. ⛔ Never a 500.
• Where the engine's structured-JSON test exists, it is called, not re-written: one "is this field structured JSON" predicate for both doors.
• Pins, through /api/v1/analytics/query on SQLite and PostgreSQL:
  • a cube dimension and a dataset dimension on a json field are refused;
  • a text dimension works (the control).
• The string count ('2' on PostgreSQL through the native path) is measured in the same pass. It is a different class (result typing), so if it reproduces it goes in out_of_scope_findings, ⛔ not fixed here.
• ⛔ Not #5930 step 3: the shared filter lowering at the analytics seams (the analytics where / preview door, the read scope) and the memory cube face's door, with the F5 / F11 output vocabulary #20810 ([finding] 仓内存在 5 个独立的过滤器→谓词编译器,每次语义裁决成本 ×5 —— 值得立「谓词编译收敛」调查程序(#5298 成本清单副产品) #5930 step 3), which lowers filters, not dimensions.

[objectstack-fleet]

Serial wait · domain:services seat (#6021) · session_01XY5uCwTjZj7884yYtyur4H · 2026-09-30T11:03Z

This card is queued in this lane, and it is not claimed yet.

• Why it waits: #5930 step 3: the shared filter lowering at the analytics seams (the analytics where / preview door, the read scope) and the memory cube face's door, with the F5 / F11 output vocabulary #20810 (same package, same area:reports, target:v18, which ranks it first) was claimed in this act (5909857104), and triage ruled the two serial (5908966078: "The two are dispatched one after the other").
• Its surface: the cube and dataset dimension compile ahead of NativeSQLStrategy. #5930 step 3: the shared filter lowering at the analytics seams (the analytics where / preview door, the read scope) and the memory cube face's door, with the F5 / F11 output vocabulary #20810's claim excludes this position, so the two will not collide textually.
• Next: this card is claimed when #5930 step 3: the shared filter lowering at the analytics seams (the analytics where / preview door, the read scope) and the memory cube face's door, with the F5 / F11 output vocabulary #20810's PR lands. It waits from this comment's stamp.

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Generated by Claude Code

[objectstack-fleet]

Claim: PM loop round 1 · 2026-09-30T14:13Z
Session: session_01XY5uCwTjZj7884yYtyur4H
Account: os-justin (the seat's linked user as GET /user answers it; the card's assignee)
Branch: claude/issue-20807-analytics-json-dimension
Worktree: objectstack-issue-20807
Domain: domain:services
Seat: domain:services (seat 1, seat post #6021)
File surface:

• packages/services/service-analytics/src/**: the cube and dataset dimension compile ahead of NativeSQLStrategy, where a dimension on a structured-JSON field is refused before any SQL is built, and its pins.
• New pin files only, cross-lane, where the repository's HTTP and live-PostgreSQL analytics pins already live:
  • packages/rest/src/ (domain:cli), for the /api/v1/analytics/query pin, as PR fix(objectql)!: a groupBy on a structured-JSON field is refused INVALID_FIELD / 400 at the engine aggregate door, on every driver (#20783) #20804 put its engine-door pin there;
  • the live-PostgreSQL harness the Temporal Conformance job runs, if the dev measures it to be elsewhere. The dev reports the path.
• .changeset/20807-*.md.
• ⛔ Not packages/objectql/src/**: the engine door (group-by-structured-json-door.ts) is read, not changed. The one predicate class is @objectstack/spec/data's STRUCTURED_JSON_TYPES, which both doors use.
• ⛔ Not packages/spec/src/**.
• ⛔ Not the result-typing difference (the string count on PostgreSQL), which triage directs to out_of_scope_findings.
  (stop on a breach outside these; explain in the report)
  Container & model: S, mode:subagent, model: opus (dispatch-gates --tier: no path-derived mandate, floor sonnet · default opus · ceiling fable). This is one refusal at one door, with the engine's answer as the template, so the default tier fits.
  Clause-②: no
• Why: the accept set only narrows. SQLite answers a json dimension today and will refuse it. The PR's line 2 carries the measured grammar, expected no (narrowing).
  Thread-read: 5909886819
  Serial constraints cleared:
• #5930 step 3: the shared filter lowering at the analytics seams (the analytics where / preview door, the read scope) and the memory cube face's door, with the F5 / F11 output vocabulary #20810, which this card waited on (5909886819), landed as PR feat(service-analytics,driver-memory): the shared filter lowering at the analytics seams and the cube face's new door (#5930 step 3) #20857 (793fb839) and is closed.
• Open PRs: none of the 12 touches service-analytics/src. chore: version packages #20639 (Version Packages, release-owned) carries only a changeset.
• Claims: no claim among the 15 open pm:dispatched cards holds service-analytics/src or packages/rest/src's analytics pins.
• [finding] driver-memory analytics: MemoryAnalyticsService drops an array (FilterArray) where and answers every row, where the object spelling filters and the engine refuses 400 #20859 (driver-memory's memory cube face) is a different package, and it is not claimed.
• This seat's other work: dead tracker citations in the domain:services packages (629 sites, 112 numbers, 152 files): the ruling C+D stage for this lane (from #20556) #20596 stage 17 is in the merge queue on service-job, which is disjoint.

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Generated by Claude Code

[objectstack-fleet]

os-dev-report
{
"issue": 20807,
"status": "done",
"branch": "claude/issue-20807-analytics-json-dimension",
"pr": "#20886",
"session": "session_01XY5uCwTjZj7884yYtyur4H (subagent run; the dispatching seat's harness-stamped id, which the container's CLAUDE_CODE_REMOTE_SESSION_ID also names)",
"premise_still_valid": true,
"summary": "A grouped dimension (a dimensions entry, or a timeDimensions entry with a granularity) whose column is a declared structured-JSON field is now refused INVALID_FIELD / 400 in AnalyticsService.ensureCube, right after the dimension source-field gate, naming the member the caller wrote, before either strategy builds anything: on /api/v1/analytics/query, /analytics/sql and /analytics/dataset/query, on every driver. The class is @objectstack/spec/data STRUCTURED_JSON_TYPES, called (the engine door's own predicate), with no edit to packages/objectql or packages/spec. The column is read the way NativeSQLStrategy compiles it, so a dataset dimension over an included relationship (account.hq) is judged on the object the cube's declared join names; that joined case was measured to leak the same way (SQLite 200 per document, PostgreSQL 500) and is closed too, while a dotted path with no declared join stays unjudged. B1-B7 measured: B1, B2, B3 and B4 held; B5: no CI step provisions a live PostgreSQL for the analytics routes, so the PG cells are local-only named skips; B6: Clause-② no (narrowing), changeset minor + BREAKING + ADR-0087 not-required (no-migration-prescription); B7 reproduced and reported, not fixed.",
"deviations": [
"The /api/v1/analytics/query pin is a new file in packages/runtime/src (analytics-json-dimension-door.test.ts), not packages/rest/src as the claim named: measured, that route is served by @objectstack/runtime's dispatcher-plugin (domains/analytics.ts), and runtime depends on rest, so no REST-package test can reach it. It sits beside the repo's other /analytics/query HTTP pins (packages/runtime/src/analytics-.test.ts); it is a new pin file only, no production code outside service-analytics. The dataset-door pin is in packages/rest/src as claimed.",
"PR assignee NOT set: label-write.mjs --issue 20886 --assign os-justin went through the relay (request fw-20260930T151818Z-994cce, run 36735705555) and execute.mjs reported POST /repos//issues/20886/assignees answered HTTP 0 (no response); conclusion failure, exit 5. Not retried and no other route taken, per the tool and the budget; the seat hangs it. Read back: PR #20886 carries 0 assignees.",
"main was not merged: the branch base is 793fb83; origin/main moved to 0803a8b during the run, and none of those commits touches this diff's paths, service-analytics, the analytics routes, the engine door or STRUCTURED_JSON_TYPES (the order merges only on a surface hit). dispatch-gates flagged the tree STALE for 3 unrelated gate inputs (check-stack-collection-maps.mjs, an i18n-walk-parity fixture, role-word-baseline.json), none among the 66 commands run.",
"The private PostgreSQL 16.13 data directory was /tmp/os-pg-issue-20807, not the scratchpad: the scratchpad's parents are mode 0700 root and postgres refuses to run as root. Started and stopped by this run (pid 3082, pg_ctl stop exit 0) and deleted."
],
"tests": "All at HEAD 075a463 (git rev-parse --short HEAD). New pins: service-analytics src/tests/dimension-structured-json-door.test.ts 13 passed; runtime src/analytics-json-dimension-door.test.ts (POST /api/v1/analytics/query and /sql) 8 passed = SQLite 4 + live PostgreSQL 16.13 4; rest src/analytics-dataset-json-dimension-door.test.ts (POST /api/v1/analytics/dataset/query) 6 passed = SQLite 3 + live PG 3. Red first at 46ee85e (pins on base code): unit 8 failed / 3 passed, runtime 6 failed / 2 passed (SQLite 200 with 3 groups one per serialized document; PG 500 DATABASE_ERROR; /sql served GROUP BY meta), rest 2 failed / 2 passed; controls green. Base reach counted at the engine on 793fb83: json dimension raw SQL 1, engine.aggregate 0, both dialects (PG 42883 could not identify an equality operator for type json). pnpm --filter @objectstack/service-analytics exec vitest run: 145 files / 3325 passed. typecheck exit 0: service-analytics (tsc --listFilesOnly includes the new door and test), rest (tsc + check:test-typecheck 0/0/0), runtime (tsc + check:test-typecheck held 27 files / 190 errors / 68 signatures). Ablation at 075a463: scripts/ablation-replace.mjs WRAP mode under the verify lock, anchor 1 to 0, blob 47ce2b2acc11 to a286ca8a75ae; service-analytics rebuilt; ablation-dist-preflight found ablated_20807 in 2 built files (dist/index.js, dist/index.cjs). Predicted red, observed red: unit 9 failed / 4 passed, runtime 6 failed / 2 passed (SQLite 200 3 groups, PG 500), rest 4 failed / 2 passed (meta_doc and acct_hq: SQLite 200, PG 500); controls green. Restore: blob == HEAD 47ce2b2acc11, git diff HEAD empty, whole-tree status empty; rebuilt; preflight --absent: marker absent from all 6 built files, tree clean; re-run 13 / 8 / 6 passed. An earlier ablation at b1befe2 read 8/3, 6/2, 2/2. Gates: dispatch-gates --commands (no paths) derived 62 at 075a463 (same list as dispatch), plus the 4 roster families (check-changeset-fixed, check:authz-resolver, check:error-code-casing, check:filter-alias-parity); all 66 exit 0 (check:dual-build-cjs-loads and check:type-check-debt first exit 3 PREREQUISITE NOT MET, re-run exit 0 after a full turbo build of ./packages/ and ./packages//); --ran: 62 derived, 62 run, 0 NOT-MEASURED, 0 UNRUN. check:adr-0087-registration accepted [BREAKING+bang+clause-②-narrowing] not-required (no-migration-prescription). Lint narrowed: eslint --no-inline-config --format json over the 5 changed .ts files: 5 files, 0 errors, 0 warnings; isPathIgnored false for all 5; parserOptions.project and projectService null for all 5 (type-aware linting off, so untouched files cannot change verdict). CI: not awaited (in_progress at report time); downstream consumers and the dogfood / Test Core shards declared to CI.",
"mcp_calls": "7 - read-only: issue_read x4 (#20807 get, #20807 get_comments, #20783 get, #20807 get_comments read-back of this report), pull_request_read x2 (#20804 get, #20886 get), get_job_logs x1 (relay run 36735705555). No write tool.",
"api_writes": "3 relay strokes (POST /repos/objectstack-ai/objectstack/dispatches, executed as objectstack-fleet[bot]): (1) pr_create, POST /repos/objectstack-ai/objectstack/pulls, landed #20886 draft, body read back 16336 of 16336 bytes identical; (2) assign via label-write.mjs, POST /repos//issues/20886/assignees, HTTP 0, did not land; (3) this os-dev-report comment via post-stamped.mjs, POST /repos//issues/20807/comments. Plus git push x4 to claude/issue-20807-analytics-json-dimension (empty-branch probe, then 46ee85e, b1befe2, 075a463); not REST.",
"open_questions": [],
"out_of_scope_findings": [
"class: a · reach: POST /api/v1/analytics/query on PostgreSQL 16.13, the native-SQL path, measured at 075a463 through the real dispatcher route over AnalyticsServicePlugin on a real engine: a text dimension's rows answer count "2" (a string) while fields[] declares {name: count, type: number}; SQLite answers 2; a registered dataset's row_count is a string the same way · evidence: the B7 wire reading (triage's result-typing class, directed out of this card) · dedupe words: analytics postgres count string native sql · NativeSQLStrategy bigint count returned as string · analytics measure type number value string postgres",
"class: c · reach: os validate (built CLI at 075a463) passes a stack whose dataset declares a dimension meta_doc over a json field (exit 0, Validation passed), while this PR's runtime refuses that dimension at query time with 400 INVALID_FIELD; control: the same stack with a measure avg over that field is refused by measure-aggregate-field-type-refused (exit 1), so the command does judge dataset members against declared types · evidence: fixture readings 26-os-validate-dim / -ctrl; the measure leg already has both legs (dataset-compiler + lint validate-dataset-measure-aggregates), the dimension refusal has only the runtime leg · dedupe words: dataset dimension json field os validate · authoring rule dimension structured json · lint dataset dimension field type",
"carrier: 承接者:无 · noted in the PR's Acceptance notes, not filed: this door's unjudged boundaries (a timeDimensions entry with no granularity over a json field is a filter; a dotted dimension with no declared join; a host without sourceFieldMeta; the draft preview's in-memory evaluateAnalyticsQueryOverRows, which does not pass ensureCube; MemoryAnalyticsService is #20859's position) - none measured as a defect"
]
}

[objectstack-fleet]

ACCEPT: #20807 · PR #20886 at 075a4634 · domain:services seat (#6021) · session_01XY5uCwTjZj7884yYtyur4H · 2026-09-30T15:24Z

The dev report is 5914264898.

Checklist, read on GitHub rather than from the report:

• Shape: a draft onto main, merge base 793fb839. 6 files, +1030 / −0:
  • the door (service-analytics/src/structured-json-dimension-door.ts) and its call in analytics-service.ts (+51);
  • three new pin files, one each in service-analytics, rest and runtime;
  • the changeset.
    No packages/objectql or packages/spec path, and no governed path.
  • Line 1 is Fixes #20807, and line 2 is Clause-②: no (narrowing), measured.
  • The assignee mirror did not land in the dev's run (the relay answered HTTP 0). This seat set it: os-justin, read back.
• The one predicate class: STRUCTURED_JSON_TYPES from @objectstack/spec/data, called as-is, which is the engine door's own class (triage's direction).
• The changeset: @objectstack/service-analytics is minor with the BREAKING banner, Clause-②: no (narrowing) and exactly one ADR-0087 marker, not-required (no-migration-prescription). The dev reports check:adr-0087-registration accepted it.
• Pins and ablation (per the report): red first at 46ee85eda, where SQLite answered 200 with one group per document, PostgreSQL answered 500 and /sql served GROUP BY meta. They are green after the fix. The ablation turns all three pin files red, and the restore is proven.
• CI at this reading: 19 success, 3 skipped, 10 in progress, 0 failure.

Deviations accepted:

• The /api/v1/analytics/query pin is in packages/runtime/src, not packages/rest/src. Measured: that route is served by @objectstack/runtime's dispatcher (domains/analytics.ts), and runtime depends on rest, so no REST-package test reaches it. The file sits beside the repository's other /analytics/query pins (packages/runtime/src/analytics-*.test.ts), which is where the claim 5913045113 said the HTTP pins go ("where the repository's HTTP … analytics pins already live"; the dev reports the path). It is a new test file only.
• The joined-dimension case (account.hq) is closed too. It was measured to fail the same way, judged on the object the cube's declared join names. A dotted path with no declared join is not judged, and that is listed.
• No live PostgreSQL runs in CI for these routes (B5). The PostgreSQL cells are named skips there, and ran green locally against PostgreSQL 16.13.
• The private PostgreSQL data directory was under /tmp, because the scratchpad's parents are root-only and postgres refuses root. It was started and stopped by this run, and deleted.
• No pre-PR merge: nothing on main since the base touches this diff's paths.

Findings, line by line:

• On PostgreSQL, the native path answers a number measure as a string (class a, triage's B7). → filed [finding] analytics: on PostgreSQL the native-SQL path answers a measure the response declares number as a string (count: "2"), where SQLite answers 2 — the class #20335 closed at the engine door #20889.
• os validate passes a dataset dimension over a json field that this door refuses (class c). → filed [finding] os validate passes a dataset dimension over a structured-JSON field that the analytics runtime refuses 400 INVALID_FIELD — only the measure has an authoring-time leg #20890. It is serial after this PR.
• The door's unjudged boundaries: a timeDimensions entry with no granularity, a dotted path with no declared join, a host without sourceFieldMeta, the draft preview, and MemoryAnalyticsService ([finding] driver-memory analytics: MemoryAnalyticsService drops an array (FilterArray) where and answers every row, where the object spelling filters and the engine refuses 400 #20859). → Acceptance notes. None was measured as a defect.

Landing waits for two things: every check green on the head, and the at-tier contract review, which the changeset prose is owed. After the merge, Fixes #20807 closes the card; this seat checks that it did.

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[objectstack-fleet]

Landed · domain:services seat (#6021) · session_01XY5uCwTjZj7884yYtyur4H · 2026-09-30T16:05Z

PR #20886 merged through the merge queue as 00a92e18 on origin/main, and Fixes #20807 closed this card completed. PR #20886's body was never re-written through the relay, which fits the pattern the seat post records for the two keywords that did not fire.

• Review: the contract review PASS on the landed head is 5914590025.
• Content check: the landed commit's git patch-id --stable equals that of the reviewed head 075a4634 against its base.

What now holds:

• A cube or dataset dimension that groups on a declared structured-JSON field (STRUCTURED_JSON_TYPES, the engine door's own class) is refused INVALID_FIELD / 400 at the analytics door, before either strategy builds a statement. The refusal names the member the caller wrote.
• It holds on /api/v1/analytics/query, /analytics/sql and /analytics/dataset/query, on every driver.
• A dimension over a declared join (account.hq) is judged on the joined object.

For the release list: @objectstack/service-analytics ships a minor marked BREAKING (Clause-②: no (narrowing)).

Carried elsewhere:

• [finding] analytics: on PostgreSQL the native-SQL path answers a measure the response declares number as a string (count: "2"), where SQLite answers 2 — the class #20335 closed at the engine door #20889: on PostgreSQL the native path answers a number measure as a string.
• [finding] os validate passes a dataset dimension over a structured-JSON field that the analytics runtime refuses 400 INVALID_FIELD — only the measure has an authoring-time leg #20890: os validate has no authoring-time leg for this refusal; it is serial after this landing.
• A residual the record raised, by reading only (item 10 of 5914590025): on a hand-authored cube with no declared joins, a dotted dimension falls back to a same-name join that the door does not judge, so PostgreSQL could still answer 500 there. No reach was measured and no producer named, so under the filing gate it is recorded here rather than filed. Whoever measures it on a public entry files it, carrying this record.
• The door's other unjudged boundaries are in PR fix(service-analytics)!: a cube or dataset dimension on a structured-JSON field is refused INVALID_FIELD / 400 at the analytics door, before any SQL is built (#20807) #20886's Acceptance notes.

In the same act, this seat removes pm:dispatched and the assignee.

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